Half to orville benjamin shortley



A. o. PATENAUDE I f 1,642,215l

SPLIT STOVEPIPE Filed May 5,., 1927 FI G :i

. INVENTDR A, 0. PATENAUDE- Patented Sept. 13, 1927.

UNITED STATES PATENT OFFICE.

AMABLE OLIVER PATENAUDE, 0F TORONTO, ONTARIO, CANADA, ASSIGNOR OF ONE- HALF TO ORVILLE BENJAMIN SHORTLEY, OF TORONTO, ONTARIO, CANADA.

SPLIT STOVEPIVPE.

Application filed May 5, 1927. Serial No. 189,015. l

My invention relates to improvements in split stove pipes, and the object of the invention is to devise a pipe section of this type in which the split edges of the section will be locked together with a maximum rigidity, and which at the same time can be engaged and disengaged. in a minimum amount oit time and with a maximum amount of ease, and it consists essentially of the arrangement and construction of parts as hereinafter more particularly explained.

Fig. l is a side elevation of a stove pipe section constructed in accordance with my invention and showing the split vedges of the section detached and slightly separated apart. Y

Fig. 2 is a similar view to Figure 1 showing the split edges in the engaged position.

Fig. 3 is an enlarged sectional detail of one oi' the locking connections in the engaged position.

Fig. 4 is a similar view to Figure 3 showing the members of the lock in the partially engaged position.

ln the drawing like characters of reference indicate corresponding parts in each ligure.

l indicates a stove pipe section provided with edge portions 2 and 3 forming the sides of the split opening of the section. 4 are a series of inverted T-shaped slots arranged in aA series parallel with the edge of the split portion 2 and spaced an equal distanceapart. The T-slots 4 form opposing tongues 4X and 4 at each side of the slot.

5 and 6 are inverted L-shaped slots located in the split edge portion 3, the L-slots opposing one another and forming an intervening strip 5X between the horizontal arms of the L and forming opposing tongues 6x and 6 forming enlargements to the strip 5Xf and located beneath the vertical arms of the inverted L-shaped slots.

It will be noted on referring particularly to Figure l that the vertical arms of the inverted T-slots 4 are graduated in length decreasing rom the top of the section towards the bottom. v

The tongues 6x and 6 of the slots 5 and 6 are correspondingly graduated.

When it is desired to interlock the opposing edges 2 vand 3 of the split pipe together all it is necessary to do is to overlap the edge 2 over the edge 3 bringing the vertical arm of each T-slot 4 in vertical alignment with each of the strips 5X intervening between the slots 5 and 6.

lVhen this is done the edge portions 2 and 3 are moved longitudinally of the stove pipe section in opposite directions thereby carrying the tongue portions 4X and 4 into engagement with the tongue portions 6X and 6 or in the position shown in Figure 4. By further moving the edge portions 2 and 3 longitudinally, the parts are carried to the position shown in Figure 3, the base of the recess formed by the vertical arm of the T-slot 4 extending across the base of the strip 5X so as to loclr against the upper edges of the tongues 6X and 6, the base of the tongues 6X and 6 engaging with the base of the tongues 4x and 4 as clearly shown in Figure 3.

As the uppermost tongues 4x and 4 are engaged with the uppermost tongues 6X and 6 the corresponding tongues ofthe next pair oi' slots 4, 5 and 6 are brought into the engaged position, and after these tongues have been engaged the corresponding tongues of the lowermost slots are brought into the engaged position so that each set of tongues of the series ot' slots are brought successively into the engaged position, thereby enabling of the locking of the section to be performed with a maximum amount of ease.

If desired the tongues 4X and 4 may be slightly bent inward and the tongues 6x and 6 slightly bent outward so as to permit of the easy engagement of these tongues. Also the corner of the tongue may be slightly chamfered oil orthe same purpose.

vWhat I claim as my invention is A split stove pipe section having inverted T-slots adjacent one split edge of the section, a pair of opposing inverted L-shaped slots adjacent the other edge of the section to form an intervening strip portion, and tongues forming enlargements of such strip ortion adapted to pass through the hori- Zontal slot of the opposing T-slot when superimposedr thereover to pass overA the tongue portions formed by the intersecting vertical Aand horizontal arm portions of the T.

AMABLE oLivnn PATENAUDE. 

